Improvement in machines for making bridge-eyes



A. SGHNEIDERLOCHNER. Machine for Making Bridge-Eyes.

Patented May 28,1878.

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MAJM r lZl/MM olJ /MMW UNITED STATES PATENT OFFICE.

ANTONY SOHNEIDERLOOHNER, OF PITTSBURG, PENNSYLVANIA.

IMPROVEMENT IN MACHINES FOR MAKING BRIDGE-EYES.

Specification forming part of Letters Patent No. 204,381, dated May 28,1878; application filed February 13, 1878.

To all whom it may concern:

Be it known that I, ANTONY SCHNEIDER- LOCHNER, of Pittsburg, in thecounty of Allegheny and State of Pennsylvania, have invented a new anduseful Improvement in Machines for Making Bridge Eyes; and I do herebydeclare the following to be a full, clear, and exact description of thesame, reference 'beinghad to the accompanying drawings, forming part ofthis specification, and in which- Figure 1 represents a vertical sectiontaken at line as a: of Fig. 2. Fig. 2 is a top view. Fig. 3 represents avertical section taken at line y y of Fig. 2; and Figs. 4, 5, 6, and 7represent details.

This invention relates to the class of machines which are used formaking eyes on bridge-links or other similar pieces; and consists in thecombination and construction of the parts hereinafter specificallydescribed, and pointed out in the claims.

In the accompanying drawings, S represents the frame of a steam-hammer,with its vertically-reciprocating ram H to which latter the follower Gis fixed. O is a square anvil-block, having the side wings c c c c toreceive the anvil A and the half-dies d d. The anvil A is first securedto the block 0 by means of the keys k k 70 after which the halfdies 11d, with their vertical ribs 1' r, are lodged into corresponding groovesformed between the anvil A and the wings a 0 0 By means of similar keysk k" the die-pieces d d are tightly pressed against the anvil A, andthus their position secured. A table, T, to support the iron bar isfixed to the front wing c of the anvil A. The rear part of this table isprovided with a movable foot, F, having the screw 8 and the guide-platea. The rear of the bar or link bears against the guide-plate a, as shownin dotted lines by Figs. 1 and 2.

The object of the movable foot F and the screw sis to obtain the exactlength of the link or piece, and to prevent the latter from being madetoo long, through the action of the hammer during the Work of piling andfin ishing.

As to the working of the machine, it is as follows: Supposing thedimensions of the link or piece to be made are known, the requireddie-pieces set in, and the foot F, with its screw 8 and guide a, movedinto its proper place to maintain the given length, the necessary ironto form the eye or head is then piled on the end of the bar. This can bedone in different ways. According to the thickness of the bar, theadditional pieces are welded either on both sides or only on the topside. The bar being kept tightly in its place by the neck of the dies atd and the guide a, the pile of the iron to form the eye is drivensideward, and will fill up the form of the die; but in order to obtainthis as perfectly as possible, and to make the best use of all themetal, I use a templet, E, Figs. 6 and 7, having a halfspheric punch, t,to force the iron sideward, a half-spheric hole, h, being found exactlyat the center of the head, and at the place where the eye-hole has to bedrilled. By this process the loss of a portion of the metal is avoidedand the hardness and strength of the piece increased, the fibers of theiron having been forced sideward, and are not cut through by drillingthe eye-hole.

The usefulness of the machine is fully justified by its simple andpractical construction, no bolts or screws being required for the fastening of the dies or anvil, as is the casein other machines for theperformance of the same kind of work.

A further great advantage obtained by this arrangement is, that thepiece is made direct to its exact length, and no upsetting of the ironis done.

What I claim as new is- 1. The combination of the anvil-block 0, havingthe wings c c c 0 as described, the anvil A, the half-dies d d, withribs 7' 4", over hanging the anvil, and the keys, substantially asdescribed and set forth.

2. The table T, provided with the movable foot F and the screw 8 andguide a, in combination with the anvil-block O, as described, and forthe purpose set forth.

ANTONY SOHNEIDERLOGHNER.

Witnesses:

J. J. MoOoRMicK, M. I. CONNOLLY.

